The yellow is said to represent genders that fall outside the binary, purple is meant to represent a mix of masculinity and femininity, and black represents a lack of gender.

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This is the bisexual pride flag.

The pink section of the flag is meant to represent same-sex attraction, the blue is meant to represent opposite-sex attraction, and the purple section between them represents attraction to both binary sexes.

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This is the polysexual pride flag.

The colors of the polysexual pride flag are the pansexual and bisexual pride flags.

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This is one of several transgender pride flag.

The blue stripes are typically associated with baby boys, the pink stripes are typically associated with baby girls, and the white stripe between them represents a transition between the two genders, or a neutral or undefined gender identity,